Clevis.



No. 778,098; PATENTED 930.20, 1904.

- 0. 0. BERGH.

APPLIGATIO 0000000000000000 4. N0 MODEL.

'15 "Till" I 1! ll h K NIIII Ill/ll U will I wi l" I an 9'" w l u UNITEDSTATES Patented December 20, 1904.

PATENT OFF CE.

- CLEVIS.

SPECIFICATION forming part of Letters Patent No. 778,098, dated December20, 1904.

Application filed April 20, 1904. Serial No. 204,127.

To all whom, iztmcty concern.-

Be it known that I, OLAI O. BERGH, acitizen of the United States,residing at Volga, in

the county of Brookings and State of South Dakota, have. invented newand useful Improvements inOlevises, of which the following is aspecification.

This invention relates to clevises,-the principal object of theinvention being to provide what may be termed a safety-clevis, which, inaddition to the two adjustably-connected clevis member's, comprises anadditional member which is in the nature of a sliding and detachablelink which is. connected with the clevis in such manner that it mayreadily slip therefrom when the machine or farming implement to whichthe clevis is attached strikes an unyielding obstacle, thusautomatically disconnecting the team from the farming implement withoutliability of breaking the harness. the machine or implement, or thewhiffletrees, or eveners where such are employed.

With the above general object in view the invention consists'in thenovel construction, combination, and arrangement of parts, as hereinfullydescribed,illustrated,and claimed.

In the accompanying drawings, Figure 1 is a perspective view of a clevisembodying the presentinvention. Fig. 2 is an enlarged detail perspectiveview ofthe draft-link with the parts thereof separated or movedout of engagement, with each other. Fig. 3 is a detail view of the break-pin.Fig. 4 is a detail View representing a portion of one of the members inwhich is held a draft device.

Like reference-numerals designate corresponding parts in all the figuresof the draw- T lugs.

Referring to the drawings, 1 designates the clevis-head, which is shownas elongated vertically and provided with a Vertical series of holes 2for the attachment of-the other clevis member, the clevis-head beingfurther provided withattaching lugs or extensions 3, provided withsuitable openings to receive bolts or rivets 4:, by means of which theclevis as a whole is attached to the tongue5 of any suitable machine orfarming implement. The other clevis member consists of a draft-linkwhich embodies two members 6 and 7, 6 designating the inner or mainmember, which is attached, by means of a pin or bolt 8, to the head 1substantially U shape,.as best shown in Fig.- 2, and provided withterminal holes 9 to receive the attaching-bolt 8, which is adjustable toany of the holes 2 of the head for raising and lowering the draft-linkto any point desired. The other member, 7, is sliding and detachablewith respect to the member 6. In shape it resembles themember 6; but theside portions thereof are set far enough apart to embrace the sideportions of the member 6 in the manner shown in Fig. 1. The sliding anddetachable member 7 is further provided adjacent to its ends with upperand lower sets of inwardly projecting flanges or lips 10, which extendover the top and bottom edges ofthe member 6 and prevent verticalseparation between the two members of the draftlink, while allowing themember 7 to slide outward on and become detached from the member 6. Bothmembers 6.and 7 are provided with oppositely-located sets of holes 11,which are adapted to receive a wooden break-pin 12, which isinsertedthrough said holes when the members 6 and 7 overlap each other, as shownin Fig. 1. The member 7 is further provided atits forward end with anopening 13, through which passes the shank of a draft-hook 14, havingatits rear end'a head 15, which lies inside of and bears against theforward connecting portion 16 of the member 7. When the machine orimplement comes in contact with an unyielding object, the wooden pin 12breaks and allows the members of the draftlink to separate, the member 7slipping off the member 6. This will prevent the breakage of any portionof the machine or harness or the eveners or whiffletrees, and at thesame time the connection between the draft-linkmembers may be readilyreestablished by inserting a new pin 12 in the place of the one broken.Several sets of holes 11 are provided, so that in case one set of holesbecomes choked with a broken pin another set may be used until somesubsequent time when it is found convenient to remove the portions ofthe old plug or pin which have become jammed in said holes.

. The attached member 6 is bent into It will be understood that the formof the l clevis may be varied and that other changes may be made in theform, proportion, and minor details of construction without departingfrom the spirit or sacrificing any of the advantages of the invention.

Having thus described the invention, what is claimed as new is 1. Aclevis comprising a draft-link, constructed of two separable members,and a connection therebetween adapted to break from undue strain uponthe members, one of said members having flanges extending across thelongitudinal edges of the other.

2. A clevis comprising a draft-link, constructed of two separablesubstantially U- shaped members, one embracing the other, and havingflanges extended across the longitudinal edges thereof, the two saidmembers being provided with registering holes, and a break-pin insertedthrough corresponding ones of said holes.

3. A clevis comprising a draft-link, constructed of two separablesubstantially U- shaped members, one embracing the other, and havingflanges extended across the longitudinal edges thereof, the two saidmembers being provided with registering holes, and a break-pin insertedthrough corresponding ones of said holes, the said first-named memberbeing provided with a draft-hook at the portion connecting the sidesthereof.

a In testimony whereof I afiix my signature in presence of twowitnesses.

OLAI O. BERGH.

Witnesses:

(J. W. SMITH, LOUIs A. GRAY.

